The new documentary "Batman & Bill" is sure to be controversial. It tackles the subject of who actually created the iconic world of Batman, who debuted in comic books way back in 1939. Conventional wisdom always gave sole credit to Bob Kane, who became a legend in the comic book industry and our pop culture as the Batman phenomenon stretched for decades. However, the documentary seeks to give credit to Bill Finger, a collaborator of Kane's who apparently created some of the most memorable characters in the Batman universe but who remained unheralded. The documentary debuts on Hulu on May 6 and the intriguing trailer indicates this truly will measure up to being "must-see TV".